Instagram, the social media platform for filtered photos and videos, announced Tuesday via blog post it has surpassed 400 million monthly active users, topping Twitter’s 316 million. Though still a long way from Facebook’s 1.5 billion users, it’s a milestone for the five-year-old company, which was valued at $35 million in late 2014. The platform, owned by Facebook, also announced Wednesday it had surpassed 40 billion photos shared on the site. That’s a whole lot of brunch plates, cats, lattes and sunsets.

Click through to check out some of Chicago's own companies and entrepreneurs who post to the photo-sharing site. (Keri Wiginton, Blue Sky photo editor)